the best way to learn it is to communicate with native speakers, I think so

practice practice practice! Speak with native speakers as much as possible. Try to practice these four every day: reading, writing, speaking and listening. It's also important to actively engage. Take quizzes and tests too. http://www.esl-lab.com/ (listening) http://www.elllo.org/ (listening) http://www.livemocha.com (speaking/pronunciation) http://www.voanews.com/ (listening) http://www.timeforkids.com/news (reading) For writing, you can chat with foreigners on QQ, Italki, Skype, start writing English journals on Weibo or other sites like that. Best of luck! Charlie Best of luck!